tittle



. @Mich tetes @nicht ffice DANIEL J. TITTLE, OF ALBANY, NEW YORK,ASSIGNOR TALBI TITTLE,

GF-TI-IE SAME PLAGE. 4

Letters j azent No. 79,282, dated June 23, 1868.

IMPROVEMENT IN HORSE-POWER.

T0 ALL WHOM IT MAY GONCERN:

Be it known that I, DANIEL J. TITTLE, ofthe city and county of Albany,State of New York, have invented an Improvement in Horse-Powers forRailroads, Svc., wherebycars can be'drawn ahead, or bhcked `up,orstopped, at the will of the driver in charge; and I do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to tl'icaeeompanying drawings, forming a part ofthis specification, and to the letters of reference markedthercon, thesame letters indicating like parts, in wlii'ch- Figure 1 represents avertical view from above, with the upper portion of the endless-treadapron removed.

Figure 2 represents a longitudinal cross-section of invention.

Figure 3 represents a lateral cross-section, front of the centre ofthcsame.

Figure 4 represents two pieces of the endless apron, viewed from theirinner sides.

The nature of my invention consists f an endless-tread apron, furnishedwith two sets of cogs. One set ot the said cogs are placed at the endsof the tread-pieces, and'said tread-'pieces are furnished .with but twoof these cogs, one :it each end. The other set of cogs are placed midwaybetweenthe ends of the tread-.pieces in a single row, and each piece isfurnish'cd'with several such centre coge. The two outside-rows of cogework on the front and rear carrying-wheels. Theshaft 4of the frontAcarrying-wheels is providedwith a gear-wheel, which works into anothergear-wheel, fixed' to the axle of the drive-wheels.` The gear-wheel of4the carryingwheels shaft isv fixed by a feather from turning, and canmove in a lateral direction from the gear on the-drive. wheel axle, andby means of a suitable lever theyvmay be thrown out or=-in gear atpleasure. Y

The Vcentre row of ccgs`(on the tread-pieces) mesh in and work direct onthe drive-wheelswhen thrown in gear by a. lever, which operates one ormore rollers beneath the endless tread, and which press the said cogsinto the drive-wheel gear. A pan 'is placed under the whole 'lengthofthe endless tread, which catches the dung and urine of the animalsworking the machine. Suitable holding-clamps, provided with set-bolts,and mash-nuts, are placed at proper points, front and back, on thesides, by which the required inclination of the tread is held securely.

To enable others skilled in Vthe art to make and use my invention, Iwill proceedto describe it in reference tothe drawings, and lettersofreference marked thereon.

A A, gs`. 1, 2, 3, represent the supporting-timbers of machine, to whichare attached the journal-boxes a a of the carrying-wheels shafts,`itigs. 1 and 3. To the said shafts b b are attached the carrying-wheelse c c c. These carrying-wheels have in:them, around their outeredges,vthe notches olli. v

The endless tread B, gs. 1 and 2, is constructed of many tread-pieces,ee, jointed together, as e e in fig. 4. The said tread-pieces'may bemade wholly or in part of iron or wood, or both..- On the inner side ofthe treadpieces, next to the links f f, iin. 4, are placed the singlecogs gg. These cogs` work in the notches d, andVV operate thecarrying-wheels e c, iig. 2, moving them in the direction indicated bythe arrows marked thereon.

Placeden the shaft b of the carrying-wheel c, figs. 1, 2, and 3, is thegear-wheclK, which is prevented from turning on the shaft by a feather.The said gear K can move in a lateraldire'ction, and be thrown in or outof g'ear with the second gear-wheel M, by means of the lever t', actedupon by a second lever, u, and draw bar o, igs.1 and 2.

The eogs 7L h 7i, on the tread-pieces e c, iig. 4, are placed nearmidway between the4 outer cogs g g, and may,

at wi1l,`operatc'in the cogs of the gear M, iig. 2, from the'lowel'side, and will turn the said gear-.wheel M in a direct'ioncontrary tothat of gear-wheel K when it is in motion. The cogsh h are not to bemade to .work in the cogs of the gear M only when the wheel K is vthrownout of gear from the 4wheel M, except when it is desirable to stop themachine.

Thefgear-wheel M is attached to the shaft plof the drive-whcel D,'andpwill cause the said drive-wheel D tc revolve forward or backward,according as it is driven by the gear-wheel K, or by the' cogsV t t-ofthe endless tread- B, `figs. 1 and 2. 1

under side of the machine obliquely, as is indicated by the red dottedlines in fig.

To throw the eogsh 7L in work with the gear-wheel M, the rollers 1'. 1',placed under the endless treadAigs. 2 and 3, are thrown upward againstthe face of the said tread, by means of the lever S, onnected with theroller-holding bars t t bythe link w and ear 11g. 2; and when thrown ingear, the said tread is kept in centact wth'the said gear M by the leverS beingheld down by the handled -hook W', moved in direction of the reddotted lines in tig.. 2. The holding-rollers rm are placed in a suitablebar-frame, t, which traverses the '17 and is connected to the timbers AA by a joint hinge starting down therefrom on the opposite side from thelever S.

F -F F F is the usxial framework of a truck, to which are attached theusualcoupled wheels D D D D by proper axle-boxes. The shafts or axles ofthe said wheels pass through between the upper and lower sides of theendless tread, as is shown in figs. 1 and 2. And the tread-power issustained .by the truck-timbers F F by means of the clamping holders a;2:', iigs. 1 and 55,placed front and back on each side, and held secureby the bolts and their nuts y y. By means of the holding-clamps x fc',and the b'inding-bolt'and its nut y, the incline of the endless treadcan be adjusted and securedi A pan, Z, is placed under the endless treadto catch the excrements that may fall from the animals, and is supportedfrom the tread-'timbersA A, ormay be supported by the truck-timbers F F.i

The usual side-piece (not represented in the drawings) vmay be placedand attached yas is generally dene.

To operate this power, the animals are pla-ced on the tread B, whentheirweight and draughtwill give to the tread a movement in direction of thearrows, iig. 2. The tread carriedby they wheels c e, c c", which more.in the said direction, is also carried andrsupportedbetween the twoends by the'bearing rollers gig, let in and supported by the uppertimber A A. The gear-wheel K, being attachedtoY the shaft of thecarrying-wheel c, has a'movement in the same direction as the tread; andwhen the saidgea'r-wheel K is thrown in gear with the wheel M by thelevervn, thegear-wheel M will have a movement in a contrary direction,and will carry with it the drive-wheel D in direction of the arrows iniig. 2.' When tliewheel K is thrown out of gear from the wheel M, andtherollers r1' are thrown up by the` lever S, the middle line of coge, h h,will be thrown in gear with the Wheel 'M, and reverse its former motionand cause the' drive-wheel to turn back. If the wheel c be thrown ingear with the wheel M, while the said wheel M is in gear with the cogs7i 7L of the tread, then the whole machine will be brought to rest.

The advantages of these improvements are these:

First. A simple reversible tread-power is produced which is completelyundert-lic control of the tender..

Second. Cars can be drawn or propelled forward, or backed, or stoppedwith ease.

Having described my invention, what I claim, and desire to securle byLetters Patent, iss- 1. The endless treadrcomposed ot the pieces e e,and furnished with the links ff, outer cogs g, and middle cogs h L 7L,and all in combination with thel said tread-pieces e e, substantially asand for the purpose set forth and described. I

2. The gear-wheel K, working on the shaft of the carrying-wheels c, incombination with the levers z' and ai, and connecting-bar o, or theirequivalents, as and for the purpose set forth and described.

3. The gear-wheel M, in combination with the drive-wheel D, or itsequivalent, and the gear-wheel K, substantially as and for the purposeset forth and described.

4 The rollers r r, with their supporting-bars tt, or their equivalents,in combination with the lever S and its link w and connecting-ear o, ortheir equivalents, as 'and for the purposeset forth and described.

5. The holding-clamps :v zu', and binding-bolt and nut y, er itsequivalent, as and for the purpose set forth and described. d v

6. The panZ, arrangedas and for the purpose set forth and described.

DANIEL J. TITTLE.

Witnesses ALEX. Samtron, V. GOLVIN.

